Chair base



CHAIR BASE. APPLICATION FILED JULY 18,192I.

Patented May 30, 1922.

ation/21a UNITED srarss PATENT OFFICE.

THOMAS W. FOOTE, 0F CLEVELAND, OHIO.

CHAIR BASE.

` Application filed, July 18,

To all cti/wm t may concern Be it lrnown that l, Tnoinxs l/V. Foo'rn, citizen of the United States, residing at Cleveland. in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Chair Bases, of which the followingl is a specification.

My invention relates to an improved chair base, designed tor use primarily with tilting and revolving chairs.

The invention is characterized by simplicity and rigidity of construction, and consists essentially in connecting the legs of 1:the base together by means ot dowel pins, or bars or rods, which pass through the liller blocks usually placed between adjacent .l have illustratively exemplified my invention in the accompanying drawing, in which 1 is a plan view, partly in section, o'l` my improved base, and Fig. 2 is a perspective View ot a Mt'ragment of a chair leg with two iiller blocks held in position onthe dowel pins.

rllhe chair base comprises the usual legs l0, 1l, 19 and 13, preferably four in numg ber. The outer end ot each leg is properly shaped and eipiipped to receive a caster (not shown), and the inner end or face 14- of each leg` is concaved presenting the segment ot a circle, so that when the inner ends oi' the tour legs are juxtaposed, as shown in Fig. 1, a complete circle 15 will be provided into which the chair spindle (not shown) may extend. To secure the legs in the juxtaposed posiH tion ot Fig. 1, l prei-er to employ dowel pins. or bars or rods 16, any desired number being` used although Jor practical purposes l have `found that eight best serve the piuposo. The dowel pins are arranged in superposed relation, four near the upper and tour near the lower laces of the inner ends ot the legs, as in this way the strains to which the structure is subjected are best distriliiuted.

The dowel pins 16 are so arranged as to project at an angle ot substantially 'fortytive degrees to the longitudinal axis oil each leg, all the dowel pins when in position (Fig. l) in the chair base `forming a square. Placed between adjacent legs, at their inner ends, are liller blocks 17, substantially triangular in shape, with their apices pointing in the direction of the opening 15 and their bases directed toward the outer ends Specification of Letters Patent.

1921. Serial N0. 485,462.

of the legs. The pins 16 pass through the filler blocks and hold the same rigidly in position. lt desired glue may be used in the openings in the chair legs and filler blocks, through which the pins 16 extend, to provide for additional security and rigidity of interconnection ol these parts.

ln assembling my improved chair base, the inner end of each leg is suitably bored tor the reception ot' the pins, and the filler blocks are similarly bored. A unit may consist ot the parts shown in Fig. 2, i. e. ot one leg, 'four pins 16 and two filler blocks 17 all rigidly interconnected. lf these parts are made to constitute a unit, each chair base would be made oir two such units and two chair legs having merely holes bored therein for the reception of the dowel pins. lt desired, each leg may have two dowel pins secured therein, and be provided with two dowel-receiving holes, and the ller blocks may be associated one with each leg, but the ultimate result is the same as with the assembly arrangement first described, which is preferred because ot simplicity of manipulation.

lChair bases of the type above referred to are usually made oit' wood and my invention contemplates a structure made of this material, but it is obvious that the invention may be equally satisfactorily applied to metal chair bases, and it is not my purpose to limit my invention to any given material, proportions or specific arrangement oi parts except as defined by the appended claims.

I claim l. A chair base comprising a plurality of legs having their inner ends juxtaposed at an angle to each other leaving spaces between adjacent leg` ends7 liller blocks in said spaces, and pins passing through the legs and filler blocks to interconnect the same.

9,. A, chair base comprising a plurality ot legs having their inner ends justaposed at an angle to each other, substantially triangular filler blocks in the angles between the adjacent inner ends of the legs, and two series of superposed dowel pins passing through the legs and ller blocks and interconnecting the same.

ln testimony whereof l have alliXed my signature.

THOMAS W. FOOTE.

Patented May 30, 1922.' 

